Table of Contents
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Overview
Note: One copy of this document ships inside the control
panel of each unit and is customer property. It must
be retained by the unit's maintenance personnel.
This manual describes proper installation, operation, and
maintenance procedures for commercial self-contained
systems. By carefully reviewing the information within this
manual and following the instructions, the risk of improper
operation and/or component damage will be minimized. It
is important that periodic maintenance be performed to
help assure trouble free operation. A maintenance
schedule is provided at the end of this manual. Should
equipment failure occur, contact a qualified service
organization with qualified, experienced HVAC technicians
to properly diagnose and repair this equipment.
This manual covers installation, operation and
maintenance of 20-110 ton Signature Series Commercial
Self Contained products with R-410A refrigerant.
R-410A Compressors
•
Use crankcase heaters which must be energized 24
hours prior to compressor start.
•
Contain POE oil which readily absorbs potentially
damaging moisture from air.
•
Control box includes a phase monitor to detect phase
loss, line voltage imbalance and reversal.
Refer to previous IOM versions for R-407C and R-22 units,
or contact your local Trane representative.
Refer to IntelliPak™ controls programming guide (PKG-
SVP01*-EN).
8
Signature Series Self-Contained
Unit Components
Commercial self-contained units are complete HVAC
systems used in floor-by-floor applications. Units are easy
to install because they feature:
•
A single point power connection.
•
Factory-installed and tested controls.
•
A single water point connection.
•
Factory-installed options.
•
An internally trapped drain connection.
Note: Refer to the following figure for typical unit
components.
The hermetically sealed scroll compressor motors utilize
internal motor protection and time delays to prevent
excessive cycling.
Water-cooled units have 2-6 refrigerant circuits and ship
with a full refrigerant and oil charge. Each circuit includes
filter drier, pressure relief valve, sight glass/moisture
indicator, thermal expansion valve with sensing bulb and
external equalizing line, discharge line schrader valve,
suction line schrader valve and high and low pressure
cutout switches. The water-cooled condensers are shell
and tube type with an internal subcooler. Condensers are
available as mechanically or chemically cleanable.
All units include liquid line service valves for each circuit as
standard (suction and discharge service valves are
optional).
Evaporator fans are double width, double inlet and forward
curved with fixed pitch belt drive assembly. Variable
frequency drives are optional. EISA efficiency open drip
proof (ODP) and totally enclosed fan cooled (TEFC) motor
options are available.
SCXF-SVX01T-EN
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